Improvement in argand-burners



UNITED STAT-Es PATENT orrrcr.

JOHN A. BowLER, on Nnw vonk, Npv.

IMPROVEMENT IN ARGAND-BURNERS.

Specification forming part of Letters Patent No. 159,635, dated February9, 1875; application filed January 12, 1875.

To all whom it may concern:

Be it known that I, JOHN A. BOWLER, of New York, in the county and Stateof New York, have invented an Improvement in Argand-Burners; and I dohereby declare that the following is a full, clear, and exact de- Yscription thereof, reference being had to the accompanying drawingforming part of this specification.

My invention relates to certain improvements in that class of argandgas-burners which are provided with a switchcock or valve for regulatingthe supply. The invention consists in a novel construction of the cockor valve-plug, and also of a wire-gauze screen used in connectiontherewith, as hereinafter particularly described.

In the accompanying drawing, Figure l is a central vertical section ofmy improved burner. Fig. 2 is an enlarged side view of the valve-plug.Fig. 3 is a vertical section of the same.

The burner B is made with its arms b b and annular chamber c in theordinary form, the arms extending radially from the neck d, in whichworks the cock or valveplug E, which may be either cylindrical ortapering, corresponding in form with the inside of the neck, but notfitting tightly therein, except at the upper end, which is rounded orbeveled, and bears against a cap, f, on the upper side of the arms b b,where they radiate from the neck d. At the upper end of the plug is astem, e, which passes through a hole in the cap f, and has attached toits upper end a lever, H, which serves as a handle for turning it..Between the lever H and the cap']c is a coiled spring, g, whichsurrounds the stem e,

and has its lower end bearing against the cap f, and its upper endagainst the lever H, by which means the plug is held in place againstthe cap, and the lever is held sufficiently tight to enable it to retainits place when moved to different positions. Y

The cock or valve-plug` E is hollow, instead of solid, as in the case ofplugs in ordinary use. In the lower or open end of the plug is inserteda wire-gauze screen, J, of cup-like form, extending up into the hollowportion. On the outer side of the plug, directly oppo site each other7are two curved or spiral grooves', l. The upper end of each groovecommunicates with one of the arms b, and is slightly wider and deeperthan .the rest of the groove, so as to spread the current of gas passingtherethrough. The lower end of each groove terminates in a hole, i, madethrough the plugfrom the outside to the inside thereof. The sides of thescreen J extend upward in the neck somewhat higher than the holes c'.

The burner is attached to the gas-pipe by means of the neck d, in theusual manner. The gas passes through the screen J, and is thus cleansedof any foreign substance, which might be' carried along thereby, and isalso prevented from whistling or humming in its passage to the burner.It then passes out,

through the holes t' and grooves Z, to the arms b b, and from thence tothe annular chamber c, and the perforations in the upper portionthereof. When the plug is in the position shown in Fig. l, the grooves Zare in communication with the arms b, so that the gas is free to iiow tothe burner.

By turning the handle or lever H, the gas is shut oli" from the burner,and, by reason of the curved or spiral form ot' the grooves, theshutting off is gradual instead ot' sudden, as in cases where thegas-passages are not curved or spiral. in the opposite direction, thegas is again turned on, and allowed to iioW to the burner with fullforce.

As the plug E does not t tightly in the neck d, a sufficient quantity ofgas is allowed to iiow to the burner to preventit from be-V ing entirelyextinguished by the operation of the leverH.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with an ordinary argand-burner, constructed withtubular arms, and an annular chamber, c, of the hollow valve- .plug E,constructed with the grooves l, running in opposite directions from thetransverse passage t' in the valve, and each communicating with one ofthe arms b, substantially as and for the purpose described.

2. The combination, with an ordinary argand-burner, constructed withtubular arms b b and annular chamber c, of the hollow valve By turningthe handle or lever H sage, of the Wire-gauze screen J, arranged uponthe inner periphery of the hollow valve, and covering the transverseopening i, substantially as and for the purpose described.

JOHN A. BOWLER. Witnesses:

BENJAMIN W. HOFFMAN, A. J. DE LACY. f

